Dynamo suspension.



narran' ernten 4WILLIAM I. THoMsoN', oF EWARK, NewJERSEY, AssiGNoR To THE SAFETY cAn HEATING Vdz LIGHTING COMPANY, A CORPORATION `OF NEW JERSEY.'

Application filed November 6, 1905. Serial No. 285,980.

To all 'it may concern.'

Beit known that I, WILLIAM I. THOMSON,

residingl'at Newark, in the county of Essex and State of Newdersey, have invented cer# tain new and useful Improvements in Dynamo Suspension, of which the following is a full, clear, and exact description, such as will enable others skilled in theart to which it ppertains to make anduse thefsame.

his invention relates to\the Vmounting of electrical machinery and, with regard to its more specific features, to the mounting of.-

a dynamo upon a car and connected with the axle thereof. l I' AOne of the objects thereof is to provide simple' means for mounting a dynamo,

whereby the same is readily adjusted and securely held in its adjusted position. `Another object is to provide efficient and durable means for suspending a dynamo in operative relation to a car axle. i

Other objects will be in part obvious and -in, lart pointed out hereinafter.

he invention accordingly consists in the features of construction, combinations ofelements and arrangements of` parts, which broken away. Fig. 2. is an en also showing certain parts broken away in .will be exemplified in the apparatus hereinafter described and the scope of the applica* tion of which will be indicated in the following claims. l

n the accom anying drawings, wherein is' shownonerof li e various possible embodiments of Irryinvention,-Figure 1 is a sidel elevationcf the same,certain dparts being v 4order to disclose the structure more clearly.

Similar reference characters -refer to similar parts throughout both views of the drawings. In lorder to render clearer certain of the several features of my invention, it may here be noted that I have found that in thecase of dynamos connected with car axles it is girly desirable that means be provided for meting the parts even :after the machine is mounted' iny positio'minasmuch-as it is imfeo practicable to place the same,'when first Ainountedfin Sthe exact position-at which it will l actl most efficiently. Moreover, on .account of 'the' limited space and the -severe 4conditions obtaining in the case of electrical machinery mounted in the above relation, it is of marked value that such means of adjustment be readily accessible and be of the 'simplest and most durable construction.

elevation,

f J The above and other' advantages are at- .:Specific'atibaof Letters patent. Patsntedriarch io, i9os' tained in constructions ofthe nature `of that A.

hereinafter described. 'f Referring now' to the .accompanying drawings, there is show n at 1 a car 'axle provided with the customary wheels 2 adapted to run upon 'the rails 3. Upon this car axle is -mounted-'a truck-4 of any desired construction, the 'samein itself forming no part of the present invention. Upon the -lower surface of the truck members farebolted the straps 6, the sameextending in a substantially horizont-al direction and being provided with depending ends 7, for a'purpose hereinafter describe i Secured to the upper surface ofl thewtruck members 5, as by the bolts 8, are/straps '9 pro'ecting over the strapse and having bolt-- ed etween their free ends andthe opposite portions of the latter members 1a crossebar 10. This cross-bar-l is 'interposed between bearing blocks A11 and 12 respectiv'el resting against the straps 6 vand 9, and is he d in position at each end by bolts 13 passing through the above several parts and shims '14. rl`he openings lwithin straps '(6 and 9 through which the bolts 13y ass are elongated in what may be termed a ongitudinal direction, by which is meant a direction substantially par-` allelto the rail. The cross-bar 10|is also provided with elongated slots through which the bolts .13 pass, .the major diameter ofthe slots being in this instance transverse to the, ldirection of travel of the truck.

Mounted upon the cross-bar 10, as by the heavy perforated lugs,15,-is1a dynamo 16 of any desired construction, the same forming in itself no part of the present invention. It ,may here be noted that the term dynamo is used throughout this specification` and the following claims in what is believed to be its. accurate technical meaning, namely, as vdesignating a` iece of ,electrical machinery which is remp oyed either to generateV electric current orto 'transform the same yinto mechanical energy. At the outer sides of the lugs '15 are adjustably securedv upon the cross-bar 10.the collars 17, which serve to prevent transverse displacement of the dynamo. f

Upon the shaft of dynamo -16 are fixed pui# leys 18, in this casetwo vin number7 although it will be obvious that for the purposes of embodying the resent invention one only is necessary. Pul eys 18 are opposite driving connected,

pulleys 19fastupon the car axle 1 and are connected therewith as by belts-20. It may here be noted that although a belt drive is referred in practical use, nevertheless many Features of my invention are independent of the articular powertransmitting means em oyed.

i pon the side of dynamo 16, remote from `the'axle 1, is formed a lug 21, -to which is se cured as by bolt 22 a' clevis 23 the threaded outer end or shank of which passes through a l cross-bar 24 bolted between the free'depending ends 7 of the straps 6. About clevis 23 'isla coil spring 25 which is compressed be- 15 tween cross-bar `24. and a washer 26, the latter part being held in position by lock 4nuts27.- j

The method of use and operation of the above-described embodiment of my inven- 4tion is as follows: The generator 16 is swung into position by means of the cross-bar 10,v the collars 17 being secured upon the cross` bar at such pointsvas to bring the dynamo substantially into the desired position with the ends of the bar resting between the blocks 11 andf12. As above set forth, however, it is usually impracticable topredetermine the precise oint at which the dynamo willact most'e ciently, andthe pivotal cross-bar 10 is readily adjusted into any desiredposition by reason of the disposition f the above-described slots in the' ends th reofpand adja-` y cent portions of the straps. When adesired adjustment of the dynamo has been attained, 35 the blocks 11 and .12 are firmly clamped I. about the cross-bar 10 by meansof bolts 13, and the position of the supporting lugs 15 is lthus fixed... Belts being mounted so as t0 connect the corresponding pulleys, the spring 25Yis com ressed, as by means o f lock nuts 27, so asl to g the desired tension upon the belts and by reason of the adjustability of v thev pivotal point 28, this exact tension may .be reachedwithout swin g the dynamo to either one 'or the other siln of the supporting bar. It will thus be seen that I have pro-- vided sim le, durable and practicable mech- Lanism we adapted to accomplish all of the objects of my invention. -Owin to the fact 59 vthat thedynamo is suspended rom its uppermost portion, it' is 'always in a state of stableequilibrium, and by reason of the adjustment of its point of 'support it may be maintained substantially vertically below the same without sacriiicing'the range of adjustability ofthe tension upon the belt. In such position, the efi'ect of any jars does not tend to swing the dynamo and either slacken gor tauten the driving belt. 6b The disposition of` the belt T tightening 7means, moreover, u on the side of the dy- `nan1o 'remote from t e axle with which it is ermits the exerting of `a resilient pull upon this machine op osmg and equal to the resilientrpull exerted thereon by the drivin r belt, and it will readily be seen that these fbrces may be nicely balanced and that there is no chance of the same lbeing thrown out of adjustment by the buckling or bend- `ing of the adjusting member, in this casethe clevis 23, as zthe force thereon is one of tension tending to strengthen rather than to compressand bend the same. The simple and yet eliicient manner in which the several parts may be adjusted should also be clearly apparent., it being unnecessary topass beneath the car for this purpose as, the belts 20 being loosened, an adjustment either in a transverse or longitudinal direction accomplished.

As many changes could be made in the above construction and many apparently widely different embodiments of m invention could be made without departing from thescope thereof, I intend that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

language used in the tended to covervall of features ofv the invention. herein described and all statements of the scope of the invention, which, as a matter of language, might be said to fall therebetween.

Certain features herein shown and described are shown, described and claimed in my co-pending application, Serial No. 285,981, filed November 6, 1905, and accordingly are not claimed herein.

.Having described my invention, what I claim as new and desire-to secure by Letters Patent isz- Y 1. In apparatus of the class described, in combination, an axle, a truck mounted upon said axle, a pair of members mounted respecfollowing claims is intively upon the upper and lower sides of said i truck at each side thereof and projecting beyond the same, said members bein provided withsubstantially opposite longltudinallyextending slots, a cross member interposed between said slotted ortions of said firstmentioned members,V olts assing through said slots and the ends of said cross member, a dynamo mounted upon said cross member,

and ower-transmittlng means connecting said namo and said axle.

2. n apparatus of the class described, in

combmatlon, an axle, a truck mounted upon said axle, a pair of Amembers secured to said truck at each side thereof, each of said members being slottedinalongitudinal direction, a cross member having its ends positioned between said members at each side of said-truck and having in each end ya slot extending in a direction transverse of said truck, bolts passing.through said slots insaid Lcross member and said first-mentioned members, a dynamo mounted upon said cross membenland is easily I desire it also toibe understood that the 90 the generic and specific4 ssimis uwer-transmitting means connecting said ynamo and said axle.

3. In. apparatus of the class described, in'

4. -In apparatus of the class described, in

A combination, an axle, a truck, a member secured upon said truck at each side thereof, a cross-baristretched between said members, said members being providedwith slots and the ends of said cross-bar being with slots'transversely dis osed with reference to said-first slots, a ynamomounted upon said cross bar, a ulley u Ons aid' dynamo, a ulle upon-sai axle, a el't connecting sai pu eys, a member upon said truck projecting beyond said dynamo, and resilient adjustable means connecting the projecting end of said member with said dynamo adapted to tend to draw said dynamo away from l said axle.\

5. In apparatusof the class described, in

combination, an axle, a truck mounted lupon M said axle, a pair of members secured upon each side 'of said truck, said ymembers being slotted' inf'a direction longitudinal of 'the truck, a cross member having its ends bei,`

tween said pairsl of members ,and having each end' slotted in a4 transverse direction, a

' of said truc a pulle upon said axle,

bolt passin through the slots on each side a dynamo suspended from said cross member, a pulley upon said dynamo, a belt connecting said pu eys, one of the members Of-e'ach of said airs of members rejecting beyond -said ynamo, Aa cross mem er connecting the free ends of said projectingmembers, and

i resilient adjustable means Aconnecting said dynamo with said second cross member and ada ted to' tend to swing the same away from sai axle. y

provided `6. In apparatus' of the class,described, in combination, an `axle, a,.dynamo, power transmittingmeans interposed between said dynamo and said axle, means adapted to permit adjustment of. the. position of said dynamo in a direction substantially parallel to said axle, and means adapted to hold said dynamo in anyl one of various positions in the direction of said adjustment.

7. In apparatus O'I' the class described, in

combination, an axle, a truck mounted upon said axle, a dynamo'suspended from said truck and positioned beneath its point of suspension, power transmitting means con' necting said axle and said dynamo, means adapted to permit adjustment of the point of sus ension of said dynamo in a longitufdinal irection, and means adapted to hold 'said point of sus ension in`any one Of various posi ions in sai direction ol adjustment..

8. In apparatus of the cla'ss described, in

combination, an axle, a truck niounted upon saidl axle, a dynamo suspended .from said truck and positioned beneath its point of suspension, powertransmitting means connecting said point of suspensionof said dynamo in either a .lateral or a longitudinal direction, and

pension in any one of various positions in said directions Of.- adjustment.-

secured upon said truck! t eacliside thereof,

across bar stretched betI axle and said dynamo, means j adapted to permit' the adjustment of the means adapted to hold said point of sus- 9. In apparatus oi the lassdescribed, in combination, anaxle, a truck, a member eeh said members,

said members being provided with-longitui diiiall dis osed slots andthe ends of said cross ar eing provided with transversely disposed slots, means disposed within said slots and adapted to hol said cross' bar in various positions, saidc i'oss bar,

means connecting said d amo and said axle.

a dynamo mounted upon and. ,power transmitting in the presence Oftwo witnesses.

VWILLIAM i. THOMSON. -Witnessesz i l A. Ci MOORE, j j, ELMER E. ALLBEii. 

